The aim of the study was to assess the long-term effects of radiofrequency electromagnetic radiation (EMR) on the cardiovascular system.

Two groups of
exposed operators (49 broadcasting (BC) station and 61 TV station operators) and a control group of 110 radiorelay station operators, matched by sex and
age, with similar job characteristics except for the radiofrequency EMR were studied. The EMR exposure was assessed and the time-weighted average
(TWA) was calculated.

The systolic and diastolic blood pressure (SBP and DBP), total cholesterol (TC) and low-density lipoprotein
cholesterol (LDL-C) were significantly higher in the two exposed groups. It was found that the radiofrequency EMR exposure was associated with greater
chance of becoming hypertensive and dyslipidemic.

The stepwise multiple regression equations showed that the SBP and TWA predicted the high TC and
high LDL-C, while the TC, age and abdominal obesity were predictors for high SBP and DBP.

In conclusion, our data show that the radiofrequency EMR
contributes to adverse effects on the cardiovascular system.